body {
  margin:0px;
  background-image:none;
  position:relative;
  left:-0px;
  width:1540px;
  margin-left:auto;
  margin-right:auto;
  text-align:left;
}
.d1{
    background-color: aqua;
    display: flex;
  justify-content: center;
  align-items: center;
  height: 195px; /* 假设容器高度为 300px */
  width: 1540px;
}
.d1>h1 {
    text-align: center;
    color: white;
    font-family:李旭科毛笔行书, sans-serif;
  }
  .d2{
    width: 300px;
    position: relative;
    top: 20px;
    left: 300px;
  }
  .d2_1{
    margin: 100px 0; /* 上下边距为 10px，左右边距为 0 */
  }
  .d3{
    width: 300px;
    position: relative;
    top: -620px;
    left: 900px;
  }
  .d3_1{
    margin: 100px 0; /* 上下边距为 10px，左右边距为 0 */
  }
  .d4{
    display: flex;
  /* justify-content: space-between; */
    width: 900px;
    height: 20px;
    position: relative;
    top: -620px;
    left: 300px;
  }
  .d4_1{
    margin: 0  20px;
  }

  .d5{
    display: flex;
  /* justify-content: space-between; */
    width: 500px;
    position: relative;
    top: -500px;
    left: 600px;
  }
a{
  text-decoration: none;
  font-size: 20px;
}
.d6{
  width: 150px;
  height: 25px;
  color: white;
  
  background-color: rgb(0, 156, 246);
  text-align: center;
  border: 2px solid rgb(0, 51, 255);
  border-radius: 20px;
}
.d7{
  display: flex;
    /* justify-content: space-between; */
    width: 150px;
    position: relative;
    top: -500px;
    left: 1300px;
}
